Maaii for iPhone - Maaii is a free mobile communications app that combines voice calls, instant messaging and social network integration. Maaii users can register with their mobile number and make free calls to other Maaii users, or call mobile and landline numbers worldwide with MaaiiOut
PingChat! (iPhone) is the ultimate way to communicate with all of your friends, whether they use an iDevice, Android or BlackBerry. PingChat! provides free, unlimited, cross-platform, smartphone-to-smartphone messaging, with real-time conversations, group chat, media sharing, and much more
Brosix for iPhone/iPad - Brosix is a cross-platform instant messaging and collaboration tool. It is ideal for everyday communication for both business and leisure. Brosix encrypts all communication channels and provides additional tools to improve user experience.
Note: Users of Brosix Personal (FREE version), please use 1 for network number when asked
Omegle 2 - Talking to strangers has never been easier. Touch a button and you are chatting with another person picked randomly from thousands of users on the omegle web site as well as other iPhone users. Conversations are totally anonymous, although nothing stops you from revealing your personal details if you wish to
GroupMe for iPhone is the best way to chat with everyone you know. It's absolutely free, whether you are talking to a group of friends, or texting with one person. Best of all, it works on nearly every phone, via push or SMS. With GroupMe, it's easy to reach anyone, anytime, anywhere
ChatNow Pro for Facebook - This app is a fast messenger which allows you to chat with your Facebook friends while on the go. The user interface is specially designed to let you easily communicate with buddies from your iPhone, iPod touch, or iPad.
The application uses Facebook OAuth authentication with official Facebook SDK
Microsoft Lync 2013 for iPad - Microsoft Lync 2013 for iPad allows you to enjoy Lync functionality on your mobile device while on the go.
The app allows you to keep in touch with your colleagues via instant messaging, email, voice and video calls.
In addition, you can connect to Lync Meetings with a single click and forward calls to your Enterprise Voice (Lync ID) number
InstaTalks - InstaTalks is the easiest and fastest way to chat with all your Instagram friends. It lets exchange private messages with other users on Instagram and share private photos with them. In addition, thanks to an innovative search system, you can discover other InstaTalks users near you, and start chatting with them. No registration required
OctroTalk (iPhone/iPad) - OctroTalk is a Jabber / XMPP/ Google Talk client for iOS devices. It supports audio and video calling to your Google Talk contacts.
OctroTalk also supports calling to phone numbers using a SIP provider of your choice.
· Connect securely to GTalk/Jabber
· P2P Audio/Video Calling
· Complete VOIP product